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SunnyDays

ERA5 almanac comparison — 8 years of real data

Marfa vs Naples: weather in July

Marfa is the clear winner for sun in July: 61% of days historically clear versus just 4% in Naples — a 57-point gap across 8 years of ERA5 data. Naples also sees measurably more rain than Marfa this month (76% vs 16% of days). This isn't close.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific July. For the actual forecast right now, each destination links to its live page below.

Marfa

TX

Clear days, July
61%
Sample size
n=248 days
Avg high
91°F
Early July (1st–15th)
52%
Late July (16th–end)
69%
Rain frequency
16% of days

Naples

FL

Clear days, July
4%
Sample size
n=248 days
Avg high
89°F
Early July (1st–15th)
3%
Late July (16th–end)
4%
Rain frequency
76% of days
See the live forecast →

Frequently asked

Is Marfa or Naples warmer in July?

Marfa runs warmer by day in July. Marfa averages highs of 91°F (highs n=248 days); Naples averages highs of 89°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Marfa or Naples in July?

Naples is measurably wetter than Marfa. Days with measurable rain: Marfa 16%, Naples 76% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in July, Marfa or Naples?

Marfa is the clear winner for sun in July: 61% of days historically clear versus just 4% in Naples — a 57-point gap across 8 years of ERA5 data. Naples also sees measurably more rain than Marfa this month (76% vs 16% of days). This isn't close.

Compare Marfa vs Naples in another month

All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.